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Deborah Andrew, Ph.D.

Deborah Andrew, Ph.D.

Academic Titles: 
Professor
Position Title: 
Principal Investigator
Appointments/Affiliations: 
410-614-2722 (Office)
410-614-2645 (Lab)
410-955-4129 (Fax)
Department of Cell Biology 
Johns Hopkins University School of Medicine  
725 N. Wolfe Street, G10 Hunterian
Baltimore, MD 21205 
 

Research Topic: Organogenesis in a model system: Formation of the Drosophila salivary gland and trachea 

Tube formation is a ubiquitous process required to sustain life in all multicellular organisms. Tubular organs in humans include the lungs, vasculature, digestive and excretory systems, as well as secretory organs such as the pancreas, salivary, prostrate, and mammary glands. My lab studies the Drosophila trachea and salivary gland as model systems for tube formation to learn how organ size, shape and function are normally controlled. Over the past several years, we have identified many genes expressed in the trachea and salivary gland, and are characterizing the subset required for early tube morphogenesis using a wide variety of genetic, imaging and biochemical approaches. 

Among the genes we have characterized are two that encode transcription factors required for internalization of either the trachea or salivary gland, trachealess and fork head. Three other genes we have characterized encode transcription factors controlling tube elongation, ribbon, huckebein and hairy. Finally, several genes encode components of signaling pathways required for organ positioning. Current efforts in the lab are directed toward identifying and characterizing the morphogenetic roles of the downstream effector molecules regulated by these transcription factors and signaling pathways. We also study the mechanisms whereby the salivary gland becomes specialized for secretion and have learned that secretory capacity in this and other secretory organs is largely controlled by a single transcription factor, CrebA. Finally, we are beginning to leverage what we have learned about the Drosophila salivary gland to compromise mosquito salivary glands as one approach to limiting malarial transmission.

 

Research Interest: 
Developmental genetics of organ formation; Drosophila
Lab Members:
Name Classificationsort descending Email Phone
Parama Paul, Ph.D. Postdoctoral Fellow ppaul7@jhmi.edu 410-614-2645
Rajprasad Loganathan, Ph.D. Postdoctoral Fellow rlogana2@jhmi.edu 410-614-2645
Michael Wells, Ph.D. Postdoctoral Fellow mwells24@jhmi.edu 410-614-2645
Dorothy Johnson Student djohn141@jhmi.edu 410-614-2645
Research

Infective parasites must traverse the mosquito salivary glands to transmit malaria to humans and other animals.  The Andrew Lab is leveraging its findings on the molecules required to form and maintain the Drosophila salivary gland to develop strategies to block malaria transmission.  Shown is an optical section through the distal lateral lobe of a female adult salivary gland stained with DAPI (blue, nuclei), alpha-tubulin (green, cytosol) and wheat-germ agglutinin (red; chitin/O-GlcNAcylated proteins).

Selected Publications:
Wells MB, Villamor J, and Andrews DJ. Salivary gland maturation and duct formation in the African malaria mosquito Anopheles gambiae. 2017. Scientific Reports 7:601. DOI: 10.1038/s41598-017-00672-0.
Chung S, Kim S, and Andrew DJ. 2017. Uncoupling apical constriction from tissue invagination. Elife Mar6;6. pii: e22235. doi: 10.7554/eLife.22235. PMCID: PMC5338918
Loganathan R, Lee JS, Wells MB, Grevengood E, Slattery M, Andrew DJ. Ribbon regulates morphogenesis of the Drosophila embryonic salivary gland through transcriptional activation and repression. Dev Biol. 2016 Jan 1;409(1):234-50
Wells, M.B. and Andrew, D.J. (2015) Salivary gland cellular architecture in the Asian malaria vector mosquito Anopheles stephensiParasites and Vectors.  In press.  
Cheng, Y.L. and Andrew, D.J. (2015) Extracellular Mipp1 activity confers migratory advantage to epithelial cells during collective migration. Cell Reports.  Published online November 25, 2015.
Hanlon, C.D. and Andrew, D.J. (2015) Outside-in signaling - a brief review of GPCR signaling with a focus on the Drosophila GPCR family. J Cell Sci 128: 3533-3542. PMID:  26345366.
Fox, R.M. and Andrew, D.J. (2015) Transcriptional regulation of secretory capacity by bZip transcription factors.  Front Biol 10: 28-51.  PMID:  25821458
Loganathan, R., Cheng, Y.L. and Andrew, D.J. (2015) ­Development of the Drosophila Respiratory System.  In:  Organogenetics.  Springer.  In press.
Andrew, D.J. and Yelon, D. (2015) Developmental mechanisms, patterning and organogenesisis. Curr Opin Genet Dev. Epub 2015 Jun 4.
Chung, S.-Y. and Andrew, D.J. (2014) Cadherin 99C regulates apical expansion and cell rearrangement during epithelial tube elongation. Development 141:1950-1960. PMID: 24718992
Fox, R.M., Vaishnavi, A., Maruyama, R., and Andrew, D.J. (2013) Organ-specific gene expression: the bHLH protein Sage provides tissue-specificity to Drosophila FoxA. Development. 140 (10): 2160-2171. PMID: 23578928. 
Barbosa S, Fasanella G, Carreira S, Llarena M, Fox R, Barreca C, Andrew D, O'Hare P. 2013 An orchestrated program regulating secretory pathway genes and cargos by the transmembrane transcription factor CREB-H. Traffic. 2013 Apr;14(4):382-98. doi: 10.1111/tra.12038.
Ismat, A., Cheshire, A. and Andrew, D.J. (2013) The secreted AdamTS-A metalloprotease is required for collective cell migration. Development. 140 (9): 1981-93. doi: 10.1242/dev.087908. Epub 2013 Mar 27. PMID: 23536567.
Maruyama, R., Grevengoed, E., Stempniewicz, P., Andrew, D.J. (2011) Genome-wide analysis reveals a major role in cell fate maintenance and an unexpected role in endoreduplication for the Drosophila FoxA gene fork headPLoS One 6(6): e20901. PMID: 21698206
Chung, S.-Y., Chavez, C. and Andrew, D.J. (2011) Trachealess (Trh) regulates all tracheal genes during Drosophila embryogenesis. Developmental Biology 360: 160-172. PMID: 21963537
Andrew, DJ and Ewald, AJ, “Morphogenesis of epithelial tubes: Insights into tube formation, elongation, and elaboration”, Developmental Biology, 2010 May 1;341(1):34-55.
Fox, R.M., Hanlon, C.D. and Andrew, D.J. (2010) The CrebA/Creb3-like transcription factors are major and direct regulators of secretory capacity. Journal of Cell Biology 191: 479-492. PMID: 21041443
Chung, S.-Y., Vining, M.S., Bradley, P.L., Chan, C.-C., Wharton, K.A. and Andrew, D.J. (2009) Serrano (Sano) functions with the planar cell polarity genes to control tracheal tube length. PLoS Genetics 5(11): e1000746. PMID: 19956736.
Kerman, B.E., Cheshire, A.M., Myat, M.M., and Andrew, D.J. (2008) Ribbon modulates apical membrane during tube elongation through Crumbs and Moesin.  Developmental Biology 320:  278-288. PMID: 18585700
Abrams, E.W., Mihoulides, W.K. and Andrew, D.J. (2006) Fork head and Sage maintain a uniform and patent salivary gland lumen through regulation of two downstream target genes, PH4áSG1 and PH4áSG2. Development 133: 3517-3527. PMID: 16914497.
Abrams, E.W. and Andrew, D.J. (2005) CrebA regulates secretory activity in the salivary gland and epidermis.  Development 132: 2743-2758. PMID: 15901661
Bradley, P.L., Myat, M.M., Comeaux, C. and Andrew, D.J. (2003) Posterior migration of the salivary gland requires an intact visceral mesoderm and integrin function.  Developmental Biology 257:  249-262. PMID: 12729556
Myat, M.M. and Andrew, D.J. (2002) Epithelial tube morphology is determined by the polarized growth and delivery of apical membrane. Cell 111:879-891. PMID: 12526813.
Bradley, P.L. and Andrew, D.J. (2001) ribbon encodes a BTB-containing transcription factor required for directed cell migration.  Development 128: 3001-3015. PMID: 11532922
Myat, M.M. and Andrew, D.J. (2000) Organ shape in the Drosophila salivary gland is controlled by regulated, sequential internalization of the primordia.  Development 127: 679-691. PMID: 10648227
Myat, M.M. and Andrew, D.J. (2000) FORK HEAD prevents apoptosis and promotes cell shape change during formation of the Drosophila salivary glands.  Development 127: 4217-4226. PMID: 10976053
Isaac, D.D. and Andrew, D.J. (1996) Tubulogenesis in Drosophila:  A requirement for the trachealess gene product.  Genes and Development 10: 103-117. PMID: 8557189
Bhanot, P., Brink, M., Samos, C.H., Hsieh, J.-C., Wang, Y., Macke, J.P., Andrew, D., Nathans, J., and Nusse, R. (1996) Dfz2, a new member of the frizzled family in Drosophila, functions as a receptor for Wingless.  Nature 382: 225-230.  PMID: 8717036